Serpentinite

Rock


Metamorphic

All serpentinites are soft, massive, compact and the texture is fine to fibrous. This igneous rock has a measurement of 10.6 cm. in length, 8.6 cm. in width and 7.1 cm. in height. It has green to greenish yellow color and has a slightly greasy feel. The green color of all serpentinites is determined principally by iron content of the original minerals, becoming deeper as it increases. Talc carbonates are common associates of serpentine.

As the name implies, serpentinite consists almost entirely of the mineral serpentine. Serpentinites, a plutonic rock, have no exact counterparts among lava. Perhaps most of them have originated at great depths that movement of the masses could not reach the earth’s surface as volcanoes or lava flows. They are deposited as stocks, dikes and lenses.

It has an accession no. NMR-3010 and was collected in Panitian Quezon, Palawan on October 22,1999. Other places where you can find serpentinites are Mindoro Oriental, Zambales, Samar, Rizal, Antique, Camarines Norte, Aklan, Bohol, Tarlac, Marinduque, Leyte, Agusan del Norte, Surigao del Norte and Cebu. Serpentinites can be cut and polished and turned into an ornamental material.

This page was last modified Monday, February 10, 2014
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